№4 Постройте углы ADN и NDB,если угол ADN = 34 градусов,угол NDB = 120 градусов.Какой может быть градусная мера угла ADB?

B                                                                                         N

                                                                                        /

                                                                                      /

       120 °                                                                    /  34°

      .___________ N                                           D /________________ А

   D      .   34°                                                           

              .                                                                   

                  .                                                                   

                      .А                                                                B

<ADB=120° + 34° = 154°                                          <ADB=120° - 34° = 86°